Sash-holder



me-Model.) n y J., CAMP-BELL 8v :Gn -SIMONSON' SASHBOLDBR..

N. PETERS, Pholo-Liihugnpher. Winhngiun, D.

UNITED STATES PATENT OFFICE.

JAMES CAMPBELL AND GIBSON SIMONSON, OF HARRISON, OHIO.

s AsH-HOLDER.

srncrrrenrrrolv forming part of Letters Patent No. 256,637, dated April 1s, 1882.

Application filed March 1, 1882.

cation.

My invention relates to an improved s pring sash-lock. It is adapted to be attached upon the inside face of the sash by two or more screws, requiring no grooves, fittings, or gains to be cut in the sash or frame toadapt it for use.

It consists of a spring-lever with rack-teeth on its inner end, which engage with rack-teeth of a serrated cam, throwing or relieving it from contact with the side ofthe window-frame, all of which will be fully' set forth in the description of the accompanyingdrawings, in which- Figure lis an elevation of my improvement. Fig. 2 is a modification in plan with'thc face of the locltplate removed.

A represents the lock-plate. It is provided on its rectangular edges with ledges b, which correspond. in depth with the thickness of the B represent-s a lever, which is pivoted to the d lock-plate A by a screw,O. lts outer end projects out of the case A, and is provided with a thumb --piece and its inner end with segmental rack-teeth D.

E represents acam, which is lock-plate by a pin or screw, e.

F represents a semicircular series of teeth upon the cam E. which engage with the teeth D of lever B. Upon the scroll-shaped face of the cam E are cut serrations E', which, by the action of the spring and lever, are forced against the face of the window frame and securely support the sash and lock it in any given position.

G represents a lug cast integral with. the case A to form the seat of a spring,-H,which spring projects forward and upward and rests in a notch, t', cut in the arm of lever B, as shown in Fig. 2. The position of this spring is such that it holds the lever B in position, except when stra-in is applied upon the outer end pivoted to the (No model.)

of within the casingA,when the sashto which v 'it is attached is lowered.

a a represent screws for securing the lock to the sash-frame. The screws C c secure the two parts lof the case A together, as well as forming pivots for the cam and lever.

In order to more eti'ectually hold the window down, I provide a lock for fixing or setting the lever B, soas to he immovable before the lock is released.

I represents a curved slot pierced through both faces of ca-se A.

K represents a thumb-screw, which passes through the slot, provided with a washer, O, andtapping into the lever B. When screw K is set the washer O is pressed against the sides ot' orifice I and holds the lever B in any fixed position. When the set-screw K is released it rises and falls in the slot Iwith the movements of the lever. in both faces of the case A, in order to allow theset-screw K to be reversed whenever it is desired to reverse the sides of the attachment of the lock for a left 'ind right hand use. Slots or gains may be cut in the sides of Vthe. frame to receive the projecting cam E, to

more efectually hold the window in position.

We claiml'. In a sash-fastener, the combination, with the lock-plate provided with the lug G, ofthe pivoted cam E, provided with the semicircular series of teeth F, the pivoted lever B, projecting outside the lock-plate and above the 'lug thereon, and' having the segmental rackteeth D, engaging the teeth on the cam, and the spring H, interposed between the lug on the lockplate and the pivoted lever, all substantially as shown and described.

2. In combination with the case A, spring- GEO. F. OEE, P. W. FRANCIS.

This slot I is pierced IOO 

